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Query String to JSON

Convert URL query strings into JSON objects.

How to Use This Tool

  1. Paste a query string.
  2. Click Convert.
  3. Copy the JSON output.

Learn More About Query String to JSON

Why convert query strings to JSON?

JSON is easier to inspect and manipulate than raw URL parameters, especially for debugging and testing.

About Query String to JSON

Query strings are a common way to pass parameters in URLs. This tool parses them into JSON for easier inspection, debugging, and testing.
Parse URL parameters into JSON objects.
Runs in browser
Yes
Array support
Repeated keys
Output
JSON

Examples

Convert UTM params

Turn URL parameters into JSON.
Input
?utm_source=google&utm_campaign=spring
Output
{
  "utm_source": "google",
  "utm_campaign": "spring"
}

Features

Repeated key support

Turns repeated parameters into arrays.

Auto decoding

URL-encoded values are decoded automatically.

Fast output

Instant JSON preview with copy support.

Use Cases

  • Inspect UTM parameters.
  • Debug API request URLs.
  • Convert form data to JSON quickly.

Frequently Asked Questions

Related Tools

Convert back to query strings using the JSON to Query String tool.